I've come back after not subbing when my free trial is over, not used to all the new 2.1 stuff yet but I'm about to try Cutter's Cry. I'm level 40

I've been doing manaward -> thunder II -> raging strikes -> spam fire 3 until out of mana -> transpose -> spam blizzard 3 until transpose is back -> transpose -> spam fire 3

I thought now would be a good time to get some advice and change it up before I carry on. I don't have flare yet but I have freeze, convert, apocastastasis, swiftcast, surecast, sleep and scathe but never know when or who to use them on

I also have fire 1, blizzard 1 and thunder 1 but only keep them to hand incase I need to damage a little bit. I have Fire 2 and blizzard 2 but use them only as area of effect.

Any suggestions anyone?